Carrier/rack problems of the 2005 Nissan Murano

Drivers seat rocks to the left. Was informed by jim mills Nissan that the seat track was bad, $716 to replace. Not covered under extended warranty. This was on Aug. 22, 2007. Filed a complaint with Nissan. Now were having problems with drivers side sunvisor falling down while your driving and passenger door lock not securing all the way. The lock mechanism will go part of the way and stop. All of the items above are safety issues that need to be addressed by Nissan. Yes, I purchased the extended warranty.

In 2013 I had to have my driver seat bracket welded due to it breaking. My airbag lights flash continously since about 2006 and I was told that it would be a few thousand dollars to replace the sensor, also my check engine light comes on and then goes off. When I took it in they said it could be several things from catalyic converter to an exhaust issue and that it would be trial and error to figure out which would remy the problem. Not to mention my driver side visor wont stay up and my alternator keeps draining my battery so I have to replace yearly. Someone please help.